Oh dear. It sounds to me like it's time for you to sell 2 of your current incubators, keep one for a hatcher, and either buy/build a cabinet incubator. Then you can just say "my incubator is full" and it sounds much more reasonable then "my 3 incubators are full". Sanity is all about faking it enough so that no one can quite tell if you are nuts or not!
